What Would Cause Exhaust Manifold To Glow Red?

What Would Cause Exhaust Manifold To Glow Red? The exhaust manifold does get very hot but if it is glowing cherry red it could be a restriction in the exhaust/ restricted catalytic converter, it could be a lean air fuel mixture, or retarded ignition timing all of the above should cause a loss of power

What Can Cause A P2197 Code?

What Can Cause A P2197 Code? Frayed oxygen sensor circuit wiring/connectors. Faulty bank 2 heated oxygen sensor 1. Malfunctioning fuel injector. Vacuum leaks. Fuel pressure too low. Debris in Mass Airflow Sensor. Exhaust leak. What causes oxygen sensor code? Deceptive Oxygen Sensor Codes Engine vacuum leaks that create a lean exhaust condition. Mass airflow sensor